class_docstr: A task definition class
  Args:
      name (str): the name of the task
      processor (DataProcessor): a DataProcessor class containing a dataset loader
      data_dir (str): path to the data source
      task_type (str): the task type (classification/regression/tagging)
code: def get_test_examples(self):
      return self.processor.get_test_examples(self.data_dir)
  
imports: from __future__ import absolute_import, division, print_function
  import csv
  import os
  import random
  import sys
  from abc import ABC
  from io import open
  from typing import List, Tuple
label_desc: Use image node_id 4 for calling the Task obj's underlying member method code with example usage: obj.get_test_examples() and returns: self